Skip to main content
Sign in Register
Question no. 2546

The first successful intergeneric cross between radish and cabbage was accomplished by_______________________?

Select your answer for: The first successful intergeneric cross between radish and cabbage was accomplished by_______________________?
Show answer

Answer: D. Karpehenko (1927)

Explanation

Karpechenko successfully synthesized the first intergeneric hybrid between radish and cabbage in 1927. His meticulous botanical work combined genera to study chromosome pairing and fertility in hybrids. Plant scientists recognize this scientific milestone as a foundational achievement in experimental plant breeding. Distant hybridization requires overcoming genetic incompatibilities between distinct plant taxonomic groups. Cytogeneticists study chromosome behavior during meiosis to understand hybrid sterility and fertility issues. Historical breakthroughs in botany paved the way for modern genetic engineering and crop improvement.

Plant breeding programs utilize wide crosses to introduce disease resistance genes from related wild genera. Agricultural universities teach historical hybridization experiments to illustrate principles of plant cytology. Modern crop development relies on advanced biotechnological tools built upon early foundational discoveries. Jones is known for hybrid corn research conducted in 1917 rather than crucifer hybridization work. Muller conducted pioneering mutagenesis research using X rays on Drosophila fruit fly organisms. Fray published later botanical studies unrelated to the initial 1927 intergeneric hybrid synthesis.

Subject
Agriculture
Category
Agriculture
Topic
—
Difficulty
medium

Related questions

Q1. Pheromones that assemble insects for feeding and mating are classified as________________?

Select your answer for: Pheromones that assemble insects for feeding and mating are classified as________________?
Show answer

Answer: B. Aggregation pheromone

Aggregation pheromones function to gather individuals together for purposes such as feeding defense and mating. Both male and female insects respond to these chemical signals to form dense population clusters. Entomologi...

Q2. The initial intergeneric hybrid between radish and cabbage was successfully synthesized by__________________?

Select your answer for: The initial intergeneric hybrid between radish and cabbage was successfully synthesized by__________________?
Show answer

Answer: D. Karechenko (1927)

The first intergeneric hybrid between radish and cabbage was successfully produced by Karpechenko in 1927. He crossed Raphanus sativus and Brassica oleracea to study chromosomal behavior in wide plant hybrids. Plant gene...

Q3. Eugenics pertains to the study of__________________?

Select your answer for: Eugenics pertains to the study of__________________?
Show answer

Answer: B. Science concerned with improvement of heredity of human race

Eugenics is the scientific study aimed at improving the genetic quality of the human population. Historical proponents of eugenics sought to apply selective breeding principles to human societies. This controversial fiel...

Q4. Fine-grained igneous formations occurring within the Earth's crust are designated____________________?

Select your answer for: Fine-grained igneous formations occurring within the Earth's crust are designated____________________?
Show answer

Answer: B. Extrusive rock

Extrusive igneous rocks form from lava cooling rapidly on the Earth's surface, resulting in fine-grained textures.

Q5. Food substances that accidentally contaminate foodstuffs during production, processing, storage, and handling are frequently termed 10 as___________________?

Select your answer for: Food substances that accidentally contaminate foodstuffs during production, processing, storage, and handling are frequently termed 10 as___________________?
Show answer

Answer: A. Food contaminations

Food contamination refers to substances that accidentally enter foodstuffs during production processing or storage. These unintended materials compromise food safety without being intentionally added as chemical preserva...

Q6. The required floor space allotment for broilers up to 4 weeks of age is _______________________?

Select your answer for: The required floor space allotment for broilers up to 4 weeks of age is _______________________?
Show answer

Answer: A. 0.5 ft2

Broiler chicks up to four weeks of age require a recommended floor space allocation of 0.5 square feet per bird. Young chicks are physically small and require less living area during their initial brooding growth phase....